Sling



NOV. 3, 1931. W HERRMANN 1,829,860

l SLING s Filed Sept. 4, 4.1930

31250 materjalpart offthis disclosure r-f "'f'the object, releasable means attached at the Patented Nov. ,3, 1931 i PATENT o1-Fica i fwinninnfnnnRiirANn-or'WEST ALBANY, NEW Yoan 'i Y' 'smiteA i .ippi'iaafion mea septeibef 4, v'1930. serial Nb. 479,643.

l `aT-his l'invention relates to new` and useful,

"improvements in asling. Y N y.

g VLThe invention has-for an object the provi# y Lsionof a'device ofthe class mentioned which ;.is of simplel durable construction, c lependable yin use yand efficient in action, and'which can a ,be manufactured'and sold at a reasonable oost.' -f 'y 1 y n The invention proposesa sling consisting mainly/of` a pair of flexible strapsfor winding around anobje'ctin opposite directions,

. means for clamping said straps together so Y fas to firmly' hold'the objecty regardless of its o size, releasable means onv the straps to hold said straps encircled around said object, and a rope to operate said releasable meansfroin Vthe point of hoisting for disengaging the ,object."

, lThe invention also proposes-a means kto Y 29 preventjthe operation'of the releasableineans upon the first pull of they rope.

For further comprehension of the inventionpandof the objects vand advantages thereof, reference ywill behad 'to the 'following description .'.andaccompanying drawings van to the appended claims inwhich the `various ,'-ovel features of the inventionare inorepar- Aticiilarly settorth@ Y Inthe accompanying drawings forming a A. i Fig. ulis, :an elevational Vview lof a device 1 porting ran object.,

7*,1'Fg'u Q constructed according to' this invention siipj a sectional .view taken on the line Vlitigi. 3i .Whedevice'jconstructed according 'tOthisinventiQn.in an' outstretched position.

1 Fig', Gis an end view ofFig. 4.,. Y

.Y The'slingconiprises a ringlO for suspenfsion'byropes 11, a pair of iiexible straps 12 attachedgatone of their ends to the said ring k1O^and fior windingaround an object'l in *opposite directions, a clamp connecting intermediate portions ofthe said straps 12 to'- getheratV the junction where, the straps leave ,and free motion results.

other .ends of the straps'12 for holding the straps encircled around the object13, and a rope 24 connected to theIl releasable means and fory drawing to release the straps and allow theobject to disengage...`

The ring 10 i Qconnected to the ropesv 11 in any conventionalinanner such as tying, binding, etc. The straps V12 are inade of web belting or leather belting so that they may be lieXible in order thatltheymay be wound v around an vobiectof lany size or shape. A

vlength of about six feet is preferable for ordinary'purposes, buty different lengths may be used for special cases. l

The straps 12 are attached to the ring l0 y155 by ybending the ends of thelstraps around the ring forming loops and then Iriveting the ends of the strapsto the strap portions adj acent toclose the loops. This aiords a loose connection between the ring and the straps The intermediate portions of the straps 12 are wound about an object and then clamped together at the point `where theyleavethe object. The clamp comprisesa bolt' r15, washers 16 and a nutl` threadedlyengaged upon the bolt. A series of apertures 18 are formed in each strap 12. Theboltl is engaged through any pair of apertures 18, the washers 16 put on, and the nut 17,` engaged. yThe pair yof apertures usedf'o isdetermined bythe ksize ofthe object 13.

The releasable means for holding the straps encircled around the object comprisestwo tiibularm'embers 19 with loops 20 formed on y them, and a pin 21. lThe straps 12 are engaged upon these tubular members bypassing their endsfthroiigh the loops 20, bending the ends around to form loops and then Vclosingtheloops by means-ofV rivets 22. A ring 23 is formed upon one end of the pin 21 for 90 attachment to a rope 24 for drawing the pin out of the tubular members to separate the straps 12. kNormally the pin 21 tends to remain within the tubular members because of the shear caused by the opposite pulls of the rstraps 12.

' The means which is provided on the releasable ineansto prevent the operation of the re leasable, means upon the first pull of the rope l, 24; includes a key 25.011 the pin 21 engageable la in a key groove formed inthe tubular members 19 forpreventing the pin 21 from revolving. Apeg 27 preferablyv integral with the pin 21 projects from one ofthe pins ends. A disc V28 is formed with a key 29 projecting from itsperiphery and is rotatively mounted `on the peg 27. A coaxial spring 30 mounted on the peg 27 acts between the vdisc`28 and a head 31 on'the end of the peg 27, for normally urging the disc 28 against .the end of the pin 21 and for engaging radialteeth'29 Vonthe key 29 with radial teeth 19 on one end of one i' of thetubular members 19 for restraining' relative turning of these. parts and fornorf: mally urging` turning of the disc 28 to a position in whichthe keyl 29 is yin line with the key groove 26.

In operation ofthis means., the disc 28 is manually turned,'takingkey 29 oiflinefwith the key groove 26 and then' fixingit in that position by allowing the radial teeth to engage; To operate the releasable' means the rope24 is pulled; TheA pin 21` slides within `the tuloular` members 19 y'until the nut 31 enspring 30 presses the disc 28. against the pin 21 and engages the radial teeth 19 and 29V pre# venting any further motion. Upon successive pulls on the rope 24,`the key'29 will slowly revolve until it is finally inline with the keyk groove26, when it is possible tolpull the keyout of the-tubular members 19and disengage the straps 12. Theadvantageof thismeans is "that 1an accidental pull upon the rope'24 will not release the object.

In .operation Vof the device, the straps `12 are -wound aroundanaobjectin opposite di- `vtheir grip.

rections, the clamp-bolt '15finserted 'in the proper apertures 18 to secure the object in a firm manner.' The object may then be raised or lowered by means of ropes11. `When it is desiredto release the object 13,' pulling the rope 24 willV disengage-the pin 21' and release the straps 12 disengaging the object from While I have shown and described the Y ferred embodiment'of my invention, itis to 'be understood that I do not 'limit myself to the precise construction herein disclosed' and the right is reserved to all changes and modi- 'Vications coming within Ythe 4scope of 'the invention as defined theappended claims.

.end ofthe straps for holding the straps en-l "circled around the object, and a rope con-` nectedto theV rleasable means and for drawing tol release the straps and allow the object to disengage, saidgclamp connecting the ingether .comprises a bolt engageable through `a pair of a series of pairs of apertures formed Y in said straps,` washers engageable on said bolt, and a nut tlireadedly engaged upon said bolt for drawing said straps taut.l

2. A sling, comprising aring for suspensonl by ropes or the like, a'pair of flexible straps attached at'one oftheir ends to the said ring for winding aroundan object in opposite directions,"aclamp connecting intermediate portionsy of the said straps together at the junction where the straps leave the object, releasable means attached at the other end of the straps for holding the straps encircled around the object, and a rope connected to the releasable means and for drawing to release the straps and allow the object to disengage, said'releasable means for holding the straps encircled about the object comprises tubular members attached ytoY said straps, a pin engaging .through saidtubular members, and aring formed on said pin for engagement by a rope. Y 'A l 3. A sling, `comprising-a ring for suspensionbyropes or the like, a pair of ilexible straps lattached at one offtheir endstothe.

said ring for winding around; an object in opposite directions, a clamp connecting'interf mediate portions of the said straps together at-the junction where the straps leave the obtermediate portions of the said straps toject, releasable means attached at the -other end of the straps for holding the straps encircled around the object, a ropeconnected to theV releasable means and for drawing to release the straps andallow the Object todisengage, and means to prevent the operation of the releasable means upon the first pull of the rope. Y

4. A sling, comprising a Vring `for suspension by ropes or the like, avpairof iieXible straps attached at one of their ends to the said ring for winding around an object yin opposite directions, a clamp` Connecting interme- "diate portions of the said straps together at the junction where the strapsV leave the object, 'releasable means attached at the other end of the straps forv holding the straps encircled around the object, a ropev connected tothe releasable means and for drawing torelease witba key groove and attached to said' fstraps,a pin engaging through'said tubuthe straps and allow theobject to disengage, and means to prevent the operation of the releasable means upon the rst pull of the I rope, comprises tubular members formed lar members, a key formed on said pinV en'- gageable in said key groove, a peg projecting from one end of the said pin, ar` disc forme with radial teeth onits face Vengageable in vradial teeth formed on said end of the pin, a

v key vprojecting fromY the periphery of said disc, a nut threadedly engaged uponsaid peg,

and means for urging the said disc against f f said pin and for revolving said'disc to bring said key in alignment with the keyy groove. 5. A sling, comprising a ringforsuspen-y v sion by ropes or the like, a pair of flexible straps ,f attached at one of their ends to the y said ,ring for winding aroundan object in opposite directions, aclamp connecting intermediate portions of the said straps together at the junction where thestraps leave the object, releasablemeansattached at the other end of the straps for holding the straps encircled around the object, av rope connected to the releasable means and for drawing to release the straps and allow the object to disengage, and means toy prevent the operation yof the releasable means upon the first pull of the rope, comprises tubular members formed with a key groove and attached'to said straps,

' a pin engaging through said tubular'members, a key formed on said pin enga eable in A said key groove, a peg projecting rom one yend of the said pin, a disc formed withradial s teeth on its face engageable in radial teeth f formed on said end of the pin, a key 'projecting fromy the peripheryof said disc, a nutv threadedly engaged upon said peg, and a spring Vfor urging the said disc against said pin and for revolving said disc to kbring said i f key in alignment with the keygroove.

In testimony whereof I have `aliixe'd my signature. o Y

- WILLIAM HERRMANN. 

